He surpassed and defeated beings that were a tier above his father Odin. he was apparently omnipresent and virtually omnipotent, knowing everything about everything like how many blades of grass there are on the earth and what not. Despite how powerful Thor is, I think this is the only incarnation that won't lose to Darsh.

RKT wins, neither majin DS, DKL, or even satan himself have shown feats on par with odins best. RKT may exceed this, but at the very least should be near this.

@KingOfAsh: As someone who has read bastard, and a good deal of classic thor comics, I can say that what odin displayed on panel against surtur and infinity are greater than anything DS has displayed, including vs augodious fallen uriel. Now it could be argued that thor is somehow weaker than his father, but he should be more powerful since he went further in the odinforce rituals than his father + has power of the runes.

He took off his head but it didn't kill Loki because he willed it. He was more powerful than Odin, probably around double since he went about twice as far as Odin did to get power. As we know Odin at his peak is universal level and a reality warper. Dormammu who is above Dr Strange who in turn is more powerful than Dark Schneider, said Odin was his equal. Take note that Dormammu has destroyed and recreated the Universe and also beat Eternity, and Rune King Thor is above Odin.

The argument however can be made that while RKT logically > modern odin, classic odin displayed feats beyond both his modern incarnation and RKT. Back in the early days of thor comics sky fathers were sometimes treated as elder god/abstract level beings with pretty high end feats. Boy did that change with the 3rd and 4th host of celestials.